test(PKG-HLS-SDK-01): checkpoint direct HTTP teardown crashes

refactor/risks.json

@@ -2688,10 +2688,13 @@
         "test/browser/hls-sdk.spec.js",
         "refactor/changes/2026-09-12-PKG-HLS-SDK-01-integration.md",
         "refactor/baselines/hls-sdk-diagnostics.json",
-        "refactor/scripts/hls-sdk-diagnostic.mjs"
+        "refactor/scripts/hls-sdk-diagnostic.mjs",
+        "refactor/changes/2026-09-14-PKG-HLS-SDK-01-http-teardown.md",
+        "refactor/baselines/hls-http-teardown-validation.json"
       ],
       "compatibleResolution": "直接原生 video（无 ArtPlayer/插件）和候选核心已有 page crashed；候选核心无观察器也复现。继续区分 SDK、Firefox/Playwright 与媒体销毁，不静默改核心 destroy 顺序或调用方 SDK 配置。",
-      "closureCriteria": "取得可解释的崩溃诊断或直接 SDK 对照；验证处置和新旧核心/worker/分组销毁矩阵，不能仅以再次通过关闭。"
+      "closureCriteria": "取得可解释的崩溃诊断或直接 SDK 对照；验证处置和新旧核心/worker/分组销毁矩阵，不能仅以再次通过关闭。",
+      "workspaceState": "2026-09-14 direct HTTP/no ArtPlayer/plugin/Worker observer:35 diagnostics,31 passed4 failed. Worker reset-first fails1/10 and1/5; no-worker10/10 and optional pre-destroy snapshot5/5 pass. SDK-first also fails2/5. Three phase-recorded crashes occur during final-state collection after destroy returned. Installed Firefox TargetRegistry observer receives oop-frameloader-crashed; no native stack/root cause established. Do not substitute no-worker/snapshot success or change core teardown order; risk remains open."
     },
     {
       "id": "HLS-PLAYBACK-01",